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Culture method for improving quality of eriocheir sinensis

A technology of Chinese mitten crab and breeding method, which is applied in the field of breeding to improve the quality of Chinese mitten crab, can solve problems such as excessive organic matter, silt in old ponds, poor quality, etc., and achieve the effect of improving economic benefits

Inactive Publication Date: 2021-03-23
上海开太鱼文化发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In recent years, people's demand for hairy crabs has been increasing, and their quality and specification requirements have become higher and higher. However, due to the uncontrollable parental germplasm resources, there are single aquatic plants in breeding, lack of oxygen in crab ponds, silting in old ponds, and organic matter. There are too many problems, and the breeding management is not fine enough, which makes the overall size of hairy crabs differentiated and the quality is not good.

Method used

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  • Culture method for improving quality of eriocheir sinensis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] 1.1 Seed source

[0065] Choose natural fishing in the Yangtze River system or artificial seedlings from aquatic original (good) seed farms with a seed production license. The crabs are cultivated by the bean crabs themselves or directly selected for breeding.

[0066] 1.2 Seed quality control

[0067] The crab-head breastplate is irregular oval, the carapace is light green or yellow-green in color, the abdomen is silver-white in color, the setae on the front and back edges of the thorax and feet are thick and short, and the color is light yellow. The side teeth are large and sharp; the specifications are neat, the body is strong, the crawling is agile, the appendages are complete, and the knuckles are not damaged; the body surface is clean, and there are no pathogenic bacteria and parasites in the microscope; the specification is 200 / kg, and the disability rate is . Less than 5% of precocious puberty individuals.

[0068] 1.3 Pond cleaning and aquatic plants planting...

Embodiment 2

[0082] 1.1 Seed source

[0083] Choose natural fishing in the Yangtze River system or artificial seedlings from aquatic original (good) seed farms with a seed production license. The crabs are cultivated by the bean crabs themselves or directly selected for breeding.

[0084] 1.2 Seed quality control

[0085] The crab-head breastplate is irregular oval, the carapace is light green or yellow-green in color, the abdomen is silver-white in color, the setae on the front and back edges of the thorax and feet are thick and short, and the color is light yellow. The side teeth are large and sharp; the specifications are neat, the body is strong, the crawling is agile, the appendages are complete, and the knuckles are not damaged; the body surface is clean, and there are no pathogenic bacteria and parasites under the microscope; the specification is 125 / kg, and the disability rate is . Less than 5% of precocious puberty individuals.

[0086] 1.3 Pond cleaning and aquatic plants plant...

Embodiment 3

[0100] 1.1 Seed source

[0101] Choose natural fishing in the Yangtze River system or artificial seedlings from aquatic original (good) seed farms with a seed production license. The crabs are cultivated by the bean crabs themselves or directly selected for breeding.

[0102] 1.2 Seed quality control

[0103] The crab-head breastplate is irregular oval, the carapace is light green or yellow-green in color, the abdomen is silver-white in color, the setae on the front and back edges of the thorax and feet are thick and short, and the color is light yellow. The side teeth are large and sharp; the specifications are neat, the body is strong, the crawling is agile, the appendages are complete, and the knuckles are not damaged; the body surface is clean, and there are no pathogenic bacteria and parasites under the microscope; the specification is 100 / kg, and the disability rate is . Less than 5% of precocious puberty individuals.

[0104] 1.3 Pond cleaning and aquatic plants plant...

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Abstract

The invention relates to the technical field of aquaculture, in particular to a culture method for improving the quality of eriocheir sinensis. The culture method comprises the following steps of transforming a pond; planting aquatic plants; putting juvenile crabs; feeding baits; regulating and controlling water quality and oxygenating; fattening adult crabs and the like. According to the culturemethod, the water purification fishery breeding technology is utilized, the modes of water quality regulation and control, organic source bait cooked food feeding, supplementary feeding of detoxifiedpurple sweet potatoes, artificial seawater domestication and weight gaining in a temporary breeding pond and the like are mainly adopted, and therefore the common problems of small specification, poorquality and low economic benefit of crab culture in a hairy crab pond are solved; and the method can remarkably improve the economic benefit, the environmental benefit and the ecological benefit of hairy crab culture.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a breeding method for improving the quality of Chinese mitten crabs. Background technique [0002] Chinese mitten crab (Eriocheir sinensis), also known as river crab, hairy crab, clear water crab, and hairy crab, is a large crustacean with a body divided into 21 segments. Parts; the back of the adult crab is dark green, the belly is grayish white, the average length of the carapace is 7cm, and the width is 7.5cm; it often lives in caves on the mud banks of rivers, lakes, and lakes. It is nocturnal and feeds on fish, shrimp, animal carcasses, and grains. In autumn, they often migrate to the estuary of the sea to lay eggs. They hatch from March to May of the second year and develop into young crabs. They then go up rivers and continue to grow up in fresh water. The meat of river crab is fresh and tender, and it is a popular aquatic product. [0003] In recent years, people's ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/59C02F9/14C02F11/02C02F11/00C02F103/20
CPCA01K61/59C02F9/00C02F11/02C02F11/00C02F7/00C02F1/66C02F3/34C02F2103/20Y02A40/81
Inventor 何文辉白静魏建军张美琼
Owner 上海开太鱼文化发展有限公司
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